Răspuns :
12. 27,5-(x+23.7)=1
27,5-x-23,7=1
3.8-x=1 ; x=2.8
14. 345,750 + (345,750-50,250) = 641,250
15. (100,9-50,65)+8,25= 58,5
27,5-x-23,7=1
3.8-x=1 ; x=2.8
14. 345,750 + (345,750-50,250) = 641,250
15. (100,9-50,65)+8,25= 58,5